Summary
Double diode triode, used as a Class A audio amplifier, made by Philips in USA.
2.0 Volt directly heated cathode.
Physical Description
Six pin USA style base. Filament is broken.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Unknown Acquisition Method from Unknown Source, 12 Oct 1972
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Manufacturer
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Inscriptions
Bulb: 1B5/25S Base: Philips/Made in USA
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Brand Names
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
105 mm (Length), 38 mm (Outside Diameter)
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Keywords